Cogging and like mill for tires



T. E. HOLMES. 000mm; AND LI.KE/MILLVFOR TIRES.

APPLICATXON FILED OCT. 1, 1919. 1,357,055. Patented Oct. 26,1920.

3 SHEETS-SHEET 1.

7 lNVENTOR THem HOLMES Wm fl-rw-o vmsw/s T. E. HOLMES.

coecms AND LIKE MILL FOR TIRES.

APPLICATION FILED OCT. I. 1919- Patented Oct 3 SHEETS-SHEET 2,

INVENTOR m H E. n s H M M B T. E. HOLMES.

COGGING AND LIKE MILL FOR TIRES.

APPLICATION FILED OCT. 1. 1919.

1,357,055. 5 Patented 6m. 26,1920.

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INVEN "roK THomRS E.HOLME$ UNITED STATES PATENT OFFICE.

THOMAS EDMUND HOLMES, or GLASGOW, SCOTLAND.

ooeeme AND LlK E MILL Fort TIRES.

v The invention relates to cogging and like,

mills, for tires, of the type in which the axes of the rolls are horizontal, the movable roll being arranged tomove parallel by a parallel motion device; and has for its object to provide a simple and effective mill in which the scale and other matters falling freely from the rolls do not clog the mechanismthus stoppage of the mill for their removal is obviated. V

In carrying out the invention the rolls are arranged in vertical plane with their axes horizontal. They are carried as usual in housings with their tire-forming parts adj acent and overhanging the housings in opposite directions.

According to the invention the upper rollis movable vertically, its bearing blocks being guided in vertical guides in its hous v It is constrained to move parallel by a parallel-motion linkage arranged above the roll and is moved to adjust the tire gap ings.

and during rolling by hydraulic means ap plied to the bearing block adjacent to the pass. Both rolls are driventhe lower roll directly; through a shaft universally jointed to the roll and to the driving means.

An example of the carrying out of the invention is illustrated in: three accompany.-

ing sheets of explanatory. drawings, Figure 1. Sheet 1 being a sidefelevation, Fig. 2 Sheet 2 an end elevation and Fig. 3 plan.

In this example, the upper roll A is mov able vertically, its bearing blocks 13 being guided in vertical guides in housings C. Its movements are constrained to be parallel Specification of Letters Patent.

the upper and movable roll' with one another by a linkage consisting of two armed bell-crank levers D, E, one armoi each of which is connected to abearing block B by a link F while the other arms are interconnected by a link G. The bellcrank levers D,-E are pivoted upon a bracket H mounted on the framing transom J. I

Patented 0011.26.19.20;

Application filed October 1, 1919. Serial No. 327,820.

The roll A is moved vertically to adjust;

the rolling gap by a hydraulic ram K operatively connected to the bearing block B ad acent to the gap and movingin' a hydraulic cylinder L ing C. j

Both rolls are driven, the upper and movable roll A by way of a shaft A and a doubly universally jointed shaft M from a usual driving train (not shown) and the lower roll N (supported in housings O in usual manner) by way of a shaft P from a usual driving train (not shown).

It will be seen that with this arrangement the mechanism for operating the movable roll A is entirely above the pass and away from falling scale and the like, which also falls clear of the lower roll N the driving mechanism of'which is not beneath its level.

TVhat Iclaim is a In a cogging or like mill for tires having rolls arranged in vertical planewith their axes horizontal and their tire forming parts supported on the housadjacent-and' overhanging the housings in merits, means for moving the roll to adjust the pass and applied adj acently thereto and means for drivingthe roll, the operating mechanism for the upper roll. and the means for maintaining parallelism being disposed above the pass and clear of falling scale from the rolls, asset forth;

In testimony whereof I have signed my name to this specification.

THOMAS EDMUND HOLMES. 

